baber/WOPTO huggingface dataset:
Patent GB-508339-A (GB)
Title: Improvements in and relating to mineral classifier machines
IPC: B03B5/54
Filed: 1938-07-26
Abstract: 508,339. Washing granular materials. LIVINGSTON, C. W. July 26, 1938, No. 22211. [Class 82 (ii)] A mineral classifier comprises a tank, open at its top and having an inclined bottom, transverse partitions in the deeper end to divide it into sorting zones and a washing and sorting column, an endless conveyer one part of which moves vertically in one of the sorting zones and another part of which moves parallel to the tank bottom, means for feeding material downwardly into the washing column, means for directing a horizontal current of liquid transversely across the column, a deflector within the column to deflect the current upwardly, means to deflect the upwardly rising current from the column into the sorting zones and transverse overflow launders arranged at the open top of the tank in one of the sorting zones. The classifier shown consists of an open tank 10 with inclined bottom 11, the deeper end being divided by partitions 31 into sorting zones 32, 33 and a washing column 34. An endless conveyer 23 with flights 24 is carried by sprockets 21, 22 so that it moves vertically downward in the sorting zone 3 2 and then parallel to the bottom 11. At one side of the column 34 is a funnel 37, Fig. 5, in which is mounted a propeller 39 which directs a horizontal stream of liquid across the column. The mouth 38 of the funnel is flared and is provided with screens 48 to produce an even flow of liquid. The material to be classified is fed into the column in the path of the liquid by a shoot 49 having a downwardly directed end 50 in which is provided a baffle 51 to divide the feed. The heavier material settles out from the flowing liquid in the column and the liquid carrying the lighter material is deflected upwardly by an inclined baffle 35 and is then caused by baffles 61 to pass into the sorting zones 32 and 33. Some of the liquid returns to a point behind the propeller 39 and is recirculated, and some, carrying the lighter particles of the material to be separated, overflows into communicating side and transverse launders 52, 53 respectively, those launders having adjustable weirs 54 and leading to a discharge font 55 at the deep end of the tank.
Patent GB-197246-A (GB)
Title: Improvements in weighing scales
IPC: G01G23/08
Filed: 1922-08-15
Abstract: 197,246. Longue, C. Aug. 15, 1922. Balances; vibration, preventing.-In an aperiodic micrometric weighing scale each end of the beam 1 is provided with two knife-edges 6, 6' supporting an intermediate member 7 which carries a knife-edge 8 arranged at right-angles to the line a-b. The scale pans are suspended from the knife-edges 8 by yolks 9. The oscillations of the scale are damped by plates 16 moving within fixed air cylinders 10, the extent of the damping being regulated by means of side openings 11 which may be more or less closed by cylindrical shutters simultaneously operated by a control link. A pointer 3 carries the micrometer 4.
Patent GB-294944-A (GB)
Title: Cold interchanger for gas separation plant
IPC: F28D17/02
Filed: 1928-08-01
Abstract: 294,944. Frõnkl, M. Aug. 1, 1927, [Convention date]. Addition to 246,172. Separating gases by liquefaction.-The cold accumulators or recuperators are divided into zones in which the mass of metal is greater in the zones at the cold end, and the cross sectional area of the passages for the gas is smaller, in order to compensate for the smaller specific heat of the metal at low temperatures. In a cylindrical accumulator, the metal is disposed in each zone in a pair of spiral corrugated strips, the corrugations being oppositely inclined so that successive strips have only one point contact. The Figure shows sections at the colder and warmer end, the corrugations being deeper at the warmer end, providing less metal and a larger gas passage. A rectangular accumulator with separate strips may be used.
Patent GB-1038155-A (GB)
Title: Improvements relating to multi-aperture magnetic devices
Inventor: GUILFORD LESLIE HENRY
IPC: H03K3/51
Filed: 1963-06-05
Abstract: 1,038,155. Circuits employing bi-stable magnetic elements. MULLARD Ltd. June 4, 1964 [June 5, 1963], No. 22341/63. Heading H3B. A multi-aperture magnetic core device is coupled to a laddie core via a transfluxor. As shown in Fig. 2 an output winding 6 wound round the split output rung 7, 8 of a laddic core 1 forms the input winding of a transfluxor core 3, the output winding 13 of which forms the hold winding of a second laddic core 2. A set pulse applied to set winding 4 subsequent to a prime pulse to winding 9 causes an output pulse to be induced in winding 6 which current induces a flux in transfluxor core 3 split substantially equally around aperture 12. After the flux has been switched into the outer path around aperture 12 by a pulse applied to prime winding 14, a pulse is applied to block winding 15 and an output current is induced in output winding 13 which switches the flux in laddie core 2 along to the next rung. Core 20 having a prime winding 21 acts as a threshold device to avoid interference signals occurring and improving the signal to noise ratio. Prime windings 9, 14, 21 may be wound in a figure-of-eight manner. Fanning out can be achieved either by providing the transfluxor with a plurality of output apertures each wound with a separate output winding or alternatively by supplying the output aperture with a number of separate output windings.
Patent GB-913192-A (GB)
Title: Overspeed trip governors for engines
Inventor: SHINNER JOHN ERNEST TONKIN
IPC: F02D9/00
Filed: 1960-06-27
Abstract: 913,192. Engine stop-gear. LUCAS (INDUSTRIES) Ltd., JOSEPH. June 16, 1961 [June 27, 1960], No. 22377/60. Class 122 (4). Overspeed governors of the kind to which the invention relates comprise in combination a valve 13 in the engine fuel supply system, means 16 for loading the valve to a closed position, a catch 17 for retaining the valve in the open position, a rotor 18 adapted to be driven by the engine and a spring- loaded mass 20 eccentrically pivoted on the rotor in such a position that when a predetermined speed or acceleration of the rotor is exceeded the mass will assume a position to release the catch. According to the invention the mass is pivoted upon the rotor about an axis 21 such that as the mass moves against the action of its spring 22 the distance of its centre of gravity from the axis of the rotor increases and the spring interconnecting the mass and rotor is so positioned that its moment remains substantially constant during such movement due to the changes in the leverage through which it acts as the spring force varies. As soon as the predetermined speed or combination of speed and acceleration is achieved the head 20a will move quickly into a position to strike the catch 17 instead of moving progressively towards this position.
Patent GB-594964-A (GB)
Title: Improvements in and relating to fluid pressure governors
IPC: G05D16/06
Filed: 1945-11-02
Abstract: 594,964. Pressure-regulating valves. FRIEDMAN, L. Nov. 2, 1945, No. 22463/44. [Class 135] The stem 5, Fig. 1, of the gas valve 6 of a governor of the kind in which the valve is regulated by a flat or bellows type diaphragm contacting the valve stem, has an extension which slides in a socket 10 closed by a stop screw 11 which prevents the collapse of, and damage to, the diaphragm. In a modification, the stem carries an adjustable stop in the form of a threaded collar 12, Fig. 2, and a lock-nut 13.
Patent GB-178380-A (GB)
Title: Improvements in centrifugal machines
IPC: B04B11/08
Filed: 1921-08-25
Abstract: 178,380. Robertson, A. R., and Dunsmore, A. F. Aug. 25, 1921. Strainer separators.-A plough, for use in discharging a centrifugal machine for treating sugar or other granular material, is supported by a member oscillating,with the machine spindle and flexibly secured to the casing to prevent rotation; this arrangement constrains the plough to occupy the same position relative to the basket notwithstanding oscillation of the basket. The radial arm 10, Fig. 1, supporting the plough 11 has at its inner end a bearing 12 on the machine spindle 13 and at its outer end it slides between guides 15 on a block pivoted on a stud in a plate 17 bolted to the casing 18. The plough is raised or lowered bv means of a handle 28 which rotates a pinion 26 engaging the rack 29. A ratchet retains the rack in any position to which it is moved. The sleeve 25 is rotatably mounted in a boss on the arm 10 and carries a worm-wheel 31 engaged by a worm 32 operated by a handwheel for moving the plough to and from the wall of the basket. Lugs 37 on the bearing 12 carry the pivot for the hook 39 which holds the valve 36. In the modification shown in Fig. 3 the bearing 12 at the end of the arm 10 surrounds the sleeve 19 which loosely encircles the spindle 13; the sleeve is secured by a flanged piece 20 to a flexible plate 21 supported by four hangers 22.
Patent GB-1115381-A (GB)
Title: Improvements in and relating to lifting or positioning apparatus
IPC: B62D49/02
Filed: 1964-06-01
Abstract: 1,115,381. Rotary-scythe mowers. J. G. de J. du VALLON. 31 May, 1965 [1 June, 1964; 21 Aug., 1964], Nos. 22563/64 and 34242/64. Heading A1F. [Also in Divisions B8 and E1]  A rotary scythe mower-carrying jib is pivoted on a shaft mounted for rotation about its axis in a frame securable to a tractor for the shaft to extend horizontally across the tractor; pivoting of the jib relative to the shaft and rotation of the shaft in the frame being caused by hydraulically actuable piston-cylinder units.
Patent GB-836155-A (GB)
Title: Improvements in or relating to ion-exchange processes
Inventor: NORTH ALAN ARTHUR
IPC: B01D15/04
Filed: 1957-07-16
Abstract: <PICT:0836155/III/1> In a "resin-in-pulp" ionexchange process for recovering metal values from an ore pulp, the ion-exchanger is in the form of one or more upwardly-extending sheets and the solid particles present in the pulp are maintained in suspension by the upward passage of a gas through the pulp.  The invention is particularly applicable to the recovery of uranium by anion exchange from a pulp formed by leaching a uranium ore with sulphuric acid to form a pulp having a pH of 1.5 and a solid content of 60% by weight.  Uranium may be removed from such a pulp by contact with a strong base quaternary ammonium resin in bead form bonded together by polyethylene. Elution may be effected with a solution of N sodium chloride, N/10 with respect to sulphuric acid.  The apparatus is shown in section in Fig. 2 where a contacting vessel 1 with a conical bottom 5 is provided with vertical sheets 2 of ion-exchange material.  Pulp enters and leaves the vessel through channels at the top, as shown at 4, and circulation is effected by blowing air from pipe 10 through a perforated plate 6 whereby the pulp circulates up through the mineral of the vessel and down adjacent the walls.
Patent GB-410151-A (GB)
Title: Improvements relating to variable speed transmission mechanism
Inventor: HAYES FRANK ANDERSON
IPC: F16H61/664
Filed: 1932-08-12
Abstract: 410,151. Variable speed gearing. HAYES, F. A., Middletown Township, New Jersey, U.S.A., and CLOUDSLEY ENGINEERING CO., Ltd., 5, Chancery Lane, London. Aug. 12, 1932, No. 22688. Addition to 344,061. [Class 80 (ii).] In variable-speed gearing with torus discs engaged by precessing rollers which are supported with their axes of tilting at a permanent angle to the planes of the discs in order to terminate the precessional action, as explained in the parent Specification, means are provided for automatically reversing that inclination to the planes of the discs when the direction of drive through the gearing as a whole is reversed. Precessional action initiated by a displacement of a speed-changing control member such as 6, Fig. 4, brings the roller axes back to equilibrium position when they intersect the gear axis for one direction of drive only. If the drive is reversed, either by the driven shaft driving back to the driving-shaft or by reversing the rotation of the driving-shaft, such precessional action would move the roller axes farther and farther from the gear axis until the rollers run off the discs or are arrested by a stop such as 21<b> shown in Figs. 1 and 2 of Specification 344,062. Reversal of the fixed angle of inclination of the axes of the carriers 4, Fig. 4, of tho rollers 5 with respect to the torus discs, not shown, converts this divergence into a convergence with stoppage of the precession in a definite position of equilibrium. This reversal of angle is effected by throwing over a pair of carrier-supporting cross arms 3<a>, Fig. 3, between the position shown and that of the chain line. This throwing over is effected automatically on reversal of the drive. Thus a friction shoe 7 upon a carrier 4 pressed against the side of a roller 5 holds the pair of cross arms 3<a> in its proper angular position during drive, but when the drive reverses, the reversed roller by means of the shoe 7 drags the carrier 4 back with it far enough to effect the throwing over of the cross arms 3<a>, which are stopped in the other proper position. The cross arms 3<a> are supported on rockers 2, as described in Specification 344,062, the pivots about which the rockers 2 are rocked by the speed control member 6 being indicated at 1. In a form shown in Figs. 1 and 3, the automatic throwing- over of the cross arms 3<a> is effected by reversal of the reaction between the control member 6 and the rocker. The cross arms 3<a> are integral with a sleeve 3 surrounding the stem 2 of the rocker which has a cross bar 2<a> and rocker pivot 1. The sleeve 3 has a cranked ball end 3<b> which engages a notch in the member 6. The throwing-over is stopped in proper angle positions by the cross arms 3<a> engaging the cross bar 2<a> as shown in Fig. 3.
Patent GB-1155964-A (GB)
Title: Improvements in or relating to Grinding Machines.
Inventor: JONES JOHN CYRIL
IPC: B23Q15/00
Filed: 1965-05-28
Abstract: 1,155,964. Abrading. CHURCHILL MACHINE TOOL CO. Ltd. 8 Aug., 1966 [28 May, 1965], No. 22694/65. Heading B3D. A roll grinding machine includes a control circuit having a first selector switch adapted to cause a predetermined degree of grinding selected from a plurality of predetermined degrees of grinding and a second selector switch adapted to cause grinding to a further predetermined degree additional to the said predetermined degree the arrangement being provided so that when workpieces such as a pair of rolls are reconditioned by the machine the first roll can be matched with the second roll which requires to have a predetermined diameter relationship with the first. Thus, in operation and with No 1 roll in position, the first selector switch is set to " No. 1 "; a preset number of rough grinding strokes determined by a first counter are then effected, followed by semi-finish and finish grinding stages. For the second roll, the first switch is moved to " No. 2" position and a rough grinding is effected for a smaller number of strokes, determined by a second counter, than for the first roll. The second roll is then measured to establish how much more material remains to be removed to bring the roll diameter to within the required dimensional tolerance relative the first roll, and the second selector switch is adjusted accordingly; the necessary additional rough grinding strokes, semi-finish strokes and finish strokes are then effected automatically. A suitable switching circuit is described in the Specification with reference to Figs. 1 to 4 (not shown).
Patent GB-742866-A (GB)
Title: Improvements in vitamin a synthesis and intermediates therefor
Filed: 1952-09-10
Abstract: The invention comprises 1,1-dialkoxy-3-methyl - 3 - hydroxy - hex - 5 - yne and the preparation thereof by reacting an acetal of acetoacetaldehyde with propargyl halide in the presence of a metal, e.g. zinc or magnesium.  Subsequently the carbinol may be condensed with b -ionone to form an acetylenic 3,7-diol acetal which may be partially hydrogenated to the corresponding olefinic 3,7-diol acetal. Vitamin A aldehyde is obtained by subjecting the olefinic 3,7-diol acetal successively to dehydration, hydrolysis by means of an ionizable acid and treatment with a basic catalyst or alternatively the conversion may be effected in one step by treatment with a mixture of an ionizable acid and a basic catalyst.  Vitamin A alcohol is obtained by subjecting the olefinic 3,7-diol to dehydration, hydrolysis by means of an ionizable acid, and treatment with a basic reducing agent.  The ethinyl carbinol is condensed with b -ionone by means of a Grignard reaction.  The dehydration of the 3,7-diol acetal may be effected by means of a phosphorus halide or oxyhalide, preferably in the presence of an amine.  Examples describe the production of Vitamin A alcohol and aldehyde starting with b -ionone.
Patent GB-334556-A (GB)
Title: Means for mounting a gramophone sound-box
IPC: G11B33/02
Filed: 1929-05-03
Abstract: 334,556. Jabas, P. Jan. 19, 1929, [Convention date]. Divided on 333,205. Sound-boxes, arrangement of and mounting.- A support for a combined sound-box and amplifier a consists of a rod 6 rotatably mounted on a U-shaped member 23. This is pivoted at 24 on an arm 25 which is itself pivoted at 26 upon a plate 3 in the casing of the machine. A catch 28 on a spring 29 having a knob 29a for manual operation holds the part 23 and the rod 6 upright when the machine is in use. An arm 30 is pivoted at 7 to the rod 6, and is provided with grooves 31 in which a forked piece 32, secured to a plate 12 on the sound-box 5, is adapted to be detachably engaged. A spring catch 35 retains these parts in engagement when the sound-box is thus mounted in the working position on the support. The box 5, which is oval, is in two separable parts 8, 9, the diaphragm being positioned in a hole in the part 8 and held in position by two plates 12, one at the front and one at the back of the part 8. When not in use, the rod 6, after the sound-box has been detached, is folded flat upon the plate 3. The halves 8, 9, of the box 5 are separated and laid one upon the other with the turntable 4 between them so that the lid 3 can enclose the whole of the parts.
Patent GB-1314270-A (GB)
Title: Inductance coil devices
IPC: H02H9/02
Filed: 1970-05-11
Abstract: 1314270 Protective arrangements ELECTRICITE DE FRANCE 11 May 1970 [9 May 1969] 22731/70 Heading H2H [Also in Division H1] A variable impedance induction arrangement (Division H1) normally held in saturation by winding 22, is inserted in the line 27 to be protected. Fault signals due to excess current detected by any of the current transformers 31, 32, 33, cause the unijunction transistor 44 to trip the thyristor 53, short circuiting the winding 22, and allow the induction arrangement to become unsaturated and exhibit a large resistance to protect the faulty line.
Patent GB-1338439-A (GB)
Title: Apparatus for reclaiming material from a storage pile
IPC: B65G65/00
Filed: 1971-04-19
Abstract: 1338439 Bucket wheel excavators; scraper apparatus FIVES LILLE-CAIL 19 April 1971 [10 Feb 1970] 22754/71 Heading E1F [Also in Division B8] One or more curved or straight elements 18 are dependently supported from a frame 14 connected to a support 10 forming part of a machine that can be so operated that the element or elements can be advanced into a face of a mass of material and can be traversed to and fro across the face to bring down to the bottom of the face a slice of material from over the entire face. The or each element may be rotatable, vibratable or oscillatable relative to the frame and may be a bar fixed to the frame or a tensioned cable mounted on the frame. The frame may be vertically swung about its pivotal connection with the support, which may also support receiving means, e.g. a bucket wheel 12, for brought down material. Part of the frame-element structure 14, 18 may be movable relative to the rest of the structure in order that said part can avoid obstacles that may be situated in its path of travel.
Patent GB-377451-A (GB)
Title: Process for treating the carbonaceous residues derived from metal-volatilising processes in rotary drum furnaces
IPC: C22B19/36
Filed: 1931-08-12
Abstract: 377,451. Materials for making producer gas. METALLGES. AKT.-GES., 45, Bockenheimer Amlage, Frankfort-on- Main, Germany. Aug. 12, 1931, No. 22790. Convention date, Aug. 13, 1930. [Class 55 (ii).] The carbonaceous residue from a rotary drum furnace, in which volatilizable metals or their compounds are heated with carbon, is discharged into a gas producer which is preferably operated to give water gas. The gases obtained may be passed into and burnt in the rotary furnace.
Patent GB-965922-A (GB)
Title: Perylimid grease
IPC: C09B57/12
Filed: 1961-06-23
Abstract: A grease composition comprises a polysiloxane lubricating oil and a grease-forming quantity, e.g.5-50 wt. per cent of one or more perylimid compounds represented by one of the general formulae: <FORM:0965922/C3/1> and <FORM:0965922/C3/2> where the R's represent hydrogen, alkyl, cycloalkyl, aryl, alkaryl, anthraquinyl, alkoxyaryl, haloaryl or aminoaryl, several such compounds being specified. Polymethyl phenylsiloxane is the preferred oil, and the compositions may contain up to 10 wt. per cent of a colloidal silica. Other optional additives mentioned are alumina hydrate, barium sulphate, clay, calcium acetate, calcium carbonate and molybdenum disulphide.ALSO:A grease comprises an oil of lubricating viscosity and a grease-forming quantity, e.g. 5-50 wt. per cent, of one or more perylimid compounds represented by one of the general formulae <FORM:0965922/C4-C5/1> and <FORM:0965922/C4-C5/2> where the R's represent hydrogen, alkyl, cycloalkyl, aryl, alkaryl, anthraquinyl, alkoxyaryl, haloaryl, or aminoaryl. Several typical perylimid compounds are mentioned.  The lubricating oil may be mineral or synthetic, synthetic oils mentioned including polypropylene, polypropylene glycol, trimethylol propane esters, neopentyl and pentaerythritol esters, di-(2-ethylhexyl) sebacate and adipate, dibutyl phthalate, polyethylene glycol di-(2-ethylhexoate), fluorocarbons, silicate esters, silanes, esters of phosphorus acids, liquid ureas, ferrocene derivatives, hydrogenated mineral oils, polyphenyls, siloxanes and polysiloxanes (e.g. polymethylphenylsiloxane) and polyphenyl ethers (e.g. m-bis-(m-phenoxyphenoxy) benzene). Up to 10% of colloidal silica may be present, and other additives mentioned are alumina hydrate, barium sulphate, clay, calcium acetate, calcium carbonate and molybdenum disulphide. Specifications 12584/13, 26690/13 and 1425/14 are referred to.